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    • By Norvic
      Well, my Son did it and turned up with a SDC in exchange for my 5000 for Easter. Went off to try the SDC, left him with Z to compare with 5000 and new age coils, he was fairly impressed with performance of 5000 with the Elite 14" but in using the Z to compare he is now spoilt and talking Z Z Z Z only. Suspect the 5000 is history, regardless that the new age coils have increased the performance of the 5000, the stability of the Z has swung him.
      The SDC, it is super stable and a small piece magnet, good fun and will complement the Z. It is the small coil gold detector for those pieces around boulders the Z just can`t get at, plus for those shallow pieces that recovering is time consuming for the Z.
       
    • By AussieMatt
      Been reading a lot about the new Coiltek, Nugget Finder & now Detech coils of late. I haven't had much to do with any of these but have detected a small area immediately after 2 x GPX4500 with the Coiltek Elite 14" mono attached. Although not an exhaustive or scientific test the end result was I got 8 x subgram nuggets from the area with the SDC & the 4500's nothing. 2 of the subgrammers came from adjacent to their scrapings so they knew something was there but was still iffy enough to walk away from. I keep hearing or reading how these coils are transforming GPX's into SDC's or even GPZ's but this short "test", for want of a better word, put some doubts in my mind.
      I've got no doubt that there is improvement in the new coils in how they enhance the target information or audio response of the detector through better windings etc. but I'm not entirely convinced it's as substantial as some make out. My thoughts are it may be about 10% performance improvement  (every bit does help regardless) & 90% of a placebo effect i.e. you buy a new coil excited by the possibilities of it's performance, you regain some enthusiasm & become more positive in approach even detecting more carefully + with more purpose - then when you find gold of course it's the new coil that done it right? 
      Another thing that has me scratching my head is how excited people are about them finding very small gold. My smallest bit with a GPX5000, fine gold & standard 11" Minelab Commander mono coil was 0.03 of gram (I think about 0.46 of a grain) so they have always been capable of doing it even with an unfashionable coil (but still a good one).
      Like I said I'm not doubting that there are definite performance improvements, much like the introduction of litz wire, but I do believe a lot can also be attributed to a refreshed or reinvigorated enthusiasm too. 
      New detectors could also have a very similar affect on us. What do the experts reckon?
    • By Walker
      Yesterday I beat my old record. Now it's .023 gram. .35 grain. I don't know if that's a good thing.
    • By PhaseTech
      Hi all,
      I've done up a video comparing some of the new coils.
      I'm an agent for Detech coils, but tried to be as unbiased as possible.
      Be interesting to hear your thoughts on the results.

    • By spencer@wy
      So i got a little cuious abt my f3 and ability to adapt to other coils and took her apart. the coil plug in is a smaller 6 pin unit. 5 wires attach at coil adapter;blk,red,yel,blu, and green. Circuit bd tentitavly look like blk n red are tied as well as yel, blu, and grn.
      coil has 29 turns with a little steel/non copper wire soliered to the leading/starting end of loop. the ANTENNA as i call it, is aprox. 10" length, starts at soldier conn near coil cntr goes 6 oclock to wrap around insulated portion of coiled wire where it enters coil pltfrm. then it goes to abt 10 oclock position bout half distance between cntr and edge of coil, passes from top side of spool to bottom side of spool where it then turns right angle to upper run and terminates bout half distance from coil cntr at aprox 2 oclock bearing from cntr.
      the spool is styrofoam 3/4 thick w/ spool groove being 5/16 " wide or tall, and in-set abt 1/2 " it is held in place by rubber band and entire surface of spool is wrapped with heavy paper that appears to have graphite? looking coating on it.
      AND HERE I THOUGHT THIS STUFF WAS ROCKET ZCIENCE. LOL.
      Just my preliminary findings, for those curious.
      now i just need: info on winding coils, findd small 6 pin plug-ins, and a 3d printeer to make coil foot adapter to hold other coils.
      thats it for now, gotta do some home-work on it. I ll post more later. Happy hunting.
    • By bado1
      Are stable threshold settings on the sdc (1,2,3...etc.) dependent more on ground conditions than anything else? The reason I ask is I have not been able to run the threshold on my sdc less than #3. On 1 and 2 the threshold is intermittent and "warbely" and basically un-huntable . On 3 she's stable and I'm finding the tiniest bits of gold. Iv'e hunted various locations here in Central Arizona and always have to set it to #3 to get a stable threshold that is not intermittent. Normal?
       
      Dean 
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